# This is purely hypothetical, of course \[Indirect pregnancy from fellatio\] **URL:** \ **Category:** Factual Questions\ **Created:** [August 31, 2009, 1:45am UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310 "2009-08-31T01:45:29Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![Maserschmidt](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/maserschmidt/32/18829_2.png) [@Maserschmidt](https://boards.straightdope.com/u/Maserschmidt)\ **Post date:** [August 31, 2009, 1:45am UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/1 "2009-08-31T01:45:29Z")
Suppose my girlfriend performs fellatio on me, and then we make out for a while, and then I go down on her. Can those feisty little sperm survive all that transportation and still find their way to an egg? Just wondering. Thanks in advance. ---
**Author:** ![TubaDiva](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tubadiva/32/507_2.png) [@TubaDiva](https://boards.straightdope.com/u/TubaDiva)\ **Post date:** [August 31, 2009, 1:29pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/2 "2009-08-31T13:29:01Z")
Since this is a universal question for some and not just a Chicago thing, I’m moving this to a more appropriate area on the board. ---
**Author:** ![Tim\_R.Mortiss](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tim_r.mortiss/32/142_2.png) [@Tim\_R.Mortiss](https://boards.straightdope.com/u/Tim_R.Mortiss)\ **Post date:** [August 31, 2009, 3:16pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/3 "2009-08-31T15:16:12Z")
I’m not an expert, but I’ll take a stab at it. I would think the harsh environment of the mouth (temperate, pH, etc.) would lead to rapid death of the little swimmers, so the chances of impregnation would be pretty minimal. But that’s just a guess…TRM P.S. - if a Stork brings babies, what bird brings NO babies? A Swallow! ---
**Author:** ![Really\_Not\_All\_That\_Bright](https://avatars.discourse-cdn.com/v4/letter/r/e8c25b/32.png) [@Really\_Not\_All\_That\_Bright](https://boards.straightdope.com/u/Really_Not_All_That_Bright)\ **Post date:** [August 31, 2009, 3:40pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/4 "2009-08-31T15:40:09Z")
> [@Tim\_R.Mortiss](#): > > I’m not an expert, but I’ll take a stab at it. I would think the harsh environment of the mouth (temperate, pH, etc.) would lead to rapid death of the little swimmers, so the chances of impregnation would be pretty minimal. But that’s just a guess…TRM Seminal fluid is ‘designed’ to harden once ejaculated in order to protect sperm from vaginal fluids, which become extremely acidic during coitus (in order to kill any bacteria which may be introduced). Presumably that would offer some protection to the little guys in the mouth, too. I think it’s more likely that the temperature difference and exposure to air in the mouth would kill them than the acidity. ---
**Author:** ![Exapno\_Mapcase](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/exapno_mapcase/32/1051_2.png) [@Exapno\_Mapcase](https://boards.straightdope.com/u/Exapno_Mapcase)\ **Post date:** [August 31, 2009, 4:58pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/5 "2009-08-31T16:58:40Z")
Hey, if [a girl can become pregnant from a sperm in a swimming pool](http://www.thesun.co.uk/sol/homepage/news/2525921/Teen-pregnant-after-swimming-in-pool.html) … ---
**Author:** ![AK84](https://avatars.discourse-cdn.com/v4/letter/a/85e7bf/32.png) [@AK84](https://boards.straightdope.com/u/AK84)\ **Post date:** [August 31, 2009, 6:01pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/6 "2009-08-31T18:01:46Z")
> [@Exapno\_Mapcase](#): > > Hey, if [a girl can become pregnant from a sperm in a swimming pool](http://www.thesun.co.uk/sol/homepage/news/2525921/Teen-pregnant-after-swimming-in-pool.html) … Please don’t quote “The Sun”. ---
**Author:** ![Colibri](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/colibri/32/1841_2.png) [@Colibri](https://boards.straightdope.com/u/Colibri)\ **Post date:** [August 31, 2009, 10:07pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/7 "2009-08-31T22:07:37Z")
Edited title to indicate subject. Colibri General Questions Moderator ---
**Author:** ![Colibri](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/colibri/32/1841_2.png) [@Colibri](https://boards.straightdope.com/u/Colibri)\ **Post date:** [August 31, 2009, 10:09pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/8 "2009-08-31T22:09:34Z")
> [@Exapno\_Mapcase](#): > > Hey, if [a girl can become pregnant from a sperm in a swimming pool](http://www.thesun.co.uk/sol/homepage/news/2525921/Teen-pregnant-after-swimming-in-pool.html) … I recall a similar claim from Australia several decades ago. As I recall, _Esquire_ magazine selected the swimming pool as “Father of the Year.” ---
**Author:** ![Tim\_R.Mortiss](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tim_r.mortiss/32/142_2.png) [@Tim\_R.Mortiss](https://boards.straightdope.com/u/Tim_R.Mortiss)\ **Post date:** [September 1, 2009, 2:48pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/9 "2009-09-01T14:48:10Z")
They should have called it the Gene Pool. ---
**Author:** ![Enola\_Straight](https://avatars.discourse-cdn.com/v4/letter/e/dec6dc/32.png) [@Enola\_Straight](https://boards.straightdope.com/u/Enola_Straight)\ **Post date:** [September 1, 2009, 3:23pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/10 "2009-09-01T15:23:59Z")
Spit Babies. ---
**Author:** ![Maserschmidt](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/maserschmidt/32/18829_2.png) [@Maserschmidt](https://boards.straightdope.com/u/Maserschmidt)\ **Post date:** [September 1, 2009, 10:53pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/11 "2009-09-01T22:53:28Z")
> [@TubaDiva](#): > > Since this is a universal question for some and not just a Chicago thing, I’m moving this to a more appropriate area on the board. Sorry about that! Next time I’ll either say something like “suppose my girlfriend performs fellatio on me…_in Chicago_”, or I’ll put it in the right place. 🙂 So far I don’t hear anyone saying it’s impossible…just unlikely. ---
**Author:** ![LiveOnAPlane](https://avatars.discourse-cdn.com/v4/letter/l/3d9bf3/32.png) [@LiveOnAPlane](https://boards.straightdope.com/u/LiveOnAPlane)\ **Post date:** [September 2, 2009, 4:46pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/12 "2009-09-02T16:46:35Z")
I know this is GQ and all, but I just can’t help mentioning that your post would have gotten a lot more attention if you had appended “Need Answer Fast!” to it. 😉 ---
**Author:** ![badbadrubberpiggy](https://avatars.discourse-cdn.com/v4/letter/b/57b2e6/32.png) [@badbadrubberpiggy](https://boards.straightdope.com/u/badbadrubberpiggy)\ **Post date:** [September 2, 2009, 4:52pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/13 "2009-09-02T16:52:37Z")
> [@Really\_Not\_All\_That\_Bright](#): > > Seminal fluid is ‘designed’ to harden once ejaculated in order to protect sperm from vaginal fluids, which become extremely acidic during coitus (in order to kill any bacteria which may be introduced). > > Presumably that would offer some protection to the little guys in the mouth, too. > > I think it’s more likely that the temperature difference and exposure to air in the mouth would kill them than the acidity. Yup. Sperm can’t even live all that long in a vagina unless the “climate” is right - typically starting a few days before ovulation, when women start producing cervical fluid that’s the correct pH & consistency for the sperm to live in. If you’re actively trying to get pregnant, saliva is a bad lubricant to use because the pH isn’t right and the sperm die off. ---
**Author:** ![Mosier](https://avatars.discourse-cdn.com/v4/letter/m/7ea924/32.png) [@Mosier](https://boards.straightdope.com/u/Mosier)\ **Post date:** [September 2, 2009, 4:55pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/14 "2009-09-02T16:55:15Z")
Need answer fast! ---
**Author:** ![The\_Great\_Philosopher](https://avatars.discourse-cdn.com/v4/letter/t/3ec8ea/32.png) [@The\_Great\_Philosopher](https://boards.straightdope.com/u/The_Great_Philosopher)\ **Post date:** [September 2, 2009, 5:47pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/15 "2009-09-02T17:47:28Z")
> [@Maserschmidt](#): > > Suppose my girlfriend performs fellatio on me, and then we make out for a while, and then I go down on her. Can those feisty little sperm survive all that transportation and still find their way to an egg? > > Just wondering. Thanks in advance. If she transfered the entire load into your mouth, and you then transfered the entire load back to her, I reckon it’s possible. But that idea doesn’t appeal very much to me, and you’d have to be a special one to do that by accident. ---
**Author:** ![Shodan](https://avatars.discourse-cdn.com/v4/letter/s/9f8e36/32.png) [@Shodan](https://boards.straightdope.com/u/Shodan)\ **Post date:** [September 2, 2009, 7:46pm UTC](https://boards.straightdope.com/t/this-is-purely-hypothetical-of-course-indirect-pregnancy-from-fellatio/508310/16 "2009-09-02T19:46:27Z")
> [@The\_Great\_Philosopher](#): > > If she transfered the entire load into your mouth, and you then transfered the entire load back to her, I reckon it’s possible. But that idea doesn’t appeal very much to me, and you’d have to be a special one to do that by accident. Plus, if she doesn’t swallow, it isn’t True Love. And gargling is just showing off. Regards, Shodan