# Questions on the rear entry position **URL:** \ **Category:** In My Humble Opinion\ **Created:** [April 3, 2013, 5:00am UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707 "2013-04-03T05:00:39Z")\ **Posts on this page:** 18\ **Page:** 2
**Author:** ![kayaker](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kayaker/32/441_2.png) [@kayaker](https://boards.straightdope.com/u/kayaker)\ **Post date:** [April 3, 2013, 4:25pm UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/21 "2013-04-03T16:25:21Z")
> [@Blackberry](#): > > Not everyone finds math sexy. [But some people _really_ do.](http://www.smbc-comics.com/index.php?db=comics&id=2934#comic) ---
**Author:** ![bup](https://avatars.discourse-cdn.com/v4/letter/b/6bbea6/32.png) [@bup](https://boards.straightdope.com/u/bup)\ **Post date:** [April 3, 2013, 4:30pm UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/22 "2013-04-03T16:30:13Z")
> [@the\_diego](#): > > We know that a man’s erect penis points or curves at least 45 degrees upward when the man is standing. A woman’s vagina, on the other hand, slants inwards between 45 and 75 degrees when she’s upright. Therefore when in congress in the rear entry position, a woman’s vagina is slanting upward 15 to 45 degrees, forcing the man’s penis to lower almost level. _This is an unnatural posture for the man’s tool_ Objection - foundation. (Legal jargon is also sexy.) Mine is comfortable anywhere from horizontal (if standing up) to laying flat against my stomach, and any angle in between. On what basis do you say it’s an unnatural posture? (emphasis in quote added) ---
**Author:** ![Penny](https://avatars.discourse-cdn.com/v4/letter/p/8baadc/32.png) [@Penny](https://boards.straightdope.com/u/Penny)\ **Post date:** [April 3, 2013, 6:14pm UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/23 "2013-04-03T18:14:34Z")
I am still in awe at how this has managed to be the most unsexy discussion about sex I’ve ever seen in my life (and I went to Catholic school!) Bravo people! ---
**Author:** ![Joey\_P](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@Joey\_P](https://boards.straightdope.com/u/Joey_P)\ **Post date:** [April 3, 2013, 6:36pm UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/24 "2013-04-03T18:36:38Z")
[Molecule](https://www.youtube.com/watch?v=d-EQhuHw6D4) ---
**Author:** ![ThelmaLou](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/thelmalou/32/390_2.png) [@ThelmaLou](https://boards.straightdope.com/u/ThelmaLou)\ **Post date:** [April 3, 2013, 7:23pm UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/25 "2013-04-03T19:23:50Z")
> [@billfish678](#): > > I like that position because I can still hold my coffee cup in one hand and ask her how those TPS reports are coming along at the same time. You are a bad boy. So, are you free later? ---
**Author:** ![TheChileanBlob](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/thechileanblob/32/435_2.png) [@TheChileanBlob](https://boards.straightdope.com/u/TheChileanBlob)\ **Post date:** [April 3, 2013, 11:11pm UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/26 "2013-04-03T23:11:43Z")
> [@the\_diego](#): > > What causes the rear-entry position to be pleasurable It’s kind of buttsexy without the “ow, my butt” of actual buttsex. ---
**Author:** ![Troppus](https://avatars.discourse-cdn.com/v4/letter/t/a587f6/32.png) [@Troppus](https://boards.straightdope.com/u/Troppus)\ **Post date:** [April 3, 2013, 11:19pm UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/27 "2013-04-03T23:19:18Z")
Because we get to control the depth of penetration and plus your balls are slapping our clits. Geez, just go with it, it’s as primitive as sex can get. This isn’t something you can make better by overanalyzing it. ---
**Author:** ![Shodan](https://avatars.discourse-cdn.com/v4/letter/s/9f8e36/32.png) [@Shodan](https://boards.straightdope.com/u/Shodan)\ **Post date:** [April 3, 2013, 11:21pm UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/28 "2013-04-03T23:21:10Z")
It’s also easier on my back. Oh, the joys of age. Regards, Shodan ---
**Author:** ![freckafree](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/freckafree/32/3050_2.png) [@freckafree](https://boards.straightdope.com/u/freckafree)\ **Post date:** [April 3, 2013, 11:32pm UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/29 "2013-04-03T23:32:39Z")
> [@Czarcasm](#): > > I think something like this requires a double-blind study. Does it have to be a randomized double-blind study? My mind is boggling at the thought. :eek: ---
**Author:** ![Cymy](https://avatars.discourse-cdn.com/v4/letter/c/a6a055/32.png) [@Cymy](https://boards.straightdope.com/u/Cymy)\ **Post date:** [April 3, 2013, 11:43pm UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/30 "2013-04-03T23:43:33Z")
> [@](#): > > We know that a man’s erect penis points or curves at least 45 degrees upward when the man is standing. Says who? I’ve seen fully-erect penises that do not meet this qualification. Yes, I’m certain they were not surgically altered in any non-circumcision manner. ---
**Author:** ![terentii](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/terentii/32/212_2.png) [@terentii](https://boards.straightdope.com/u/terentii)\ **Post date:** [April 3, 2013, 11:54pm UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/31 "2013-04-03T23:54:24Z")
> [@kayaker](#): > > [But some people _really_ do.](http://www.smbc-comics.com/index.php?db=comics&id=2934#comic) That’s _intuitively_ obvious. 🆒 ---
**Author:** ![RickJay](https://avatars.discourse-cdn.com/v4/letter/r/bb73d2/32.png) [@RickJay](https://boards.straightdope.com/u/RickJay)\ **Post date:** [April 4, 2013, 1:16am UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/32 "2013-04-04T01:16:35Z")
> [@the\_diego](#): > > My first sex-related query (barring that failed thread about forcible rape.) We know that a man’s erect penis points or curves at least 45 degrees upward when the man is standing. What? Mine doesn’t. ---
**Author:** ![billfish678](https://avatars.discourse-cdn.com/v4/letter/b/7bcc69/32.png) [@billfish678](https://boards.straightdope.com/u/billfish678)\ **Post date:** [April 4, 2013, 1:16am UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/33 "2013-04-04T01:16:47Z")
> [@Troppus](#): > > Because we get to control the depth of penetration and plus your balls are slapping our clits. Geez, just go with it, it’s as primitive as sex can get. This isn’t something you can make better by overanalyzing it. You are not an engineer are you ? 🙂 ---
**Author:** ![Frylock](https://avatars.discourse-cdn.com/v4/letter/f/ce7236/32.png) [@Frylock](https://boards.straightdope.com/u/Frylock)\ **Post date:** [April 4, 2013, 1:19am UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/34 "2013-04-04T01:19:38Z")
> [@standingwave](#): > > If A, B are two points on a line a, and A’ is a point on the same or on another line a’ then it is always possible to find a point B’ on a given side of the line a’ such that AB and A’B’ are congruent. If a segment A’B’ and a segment A"B" are congruent to the same segment AB, then segments A’B’ and A"B" are congruent to each other. On a line a, let AB and BC be two segments which, except for B, have no points in common. Furthermore, on the same or another line a’, let A’B’ and B’C’ be two segments which, except for B’, have no points in common. In that case if AB≈A’B’ and BC≈B’C’, then AC≈A’C’. If ∠ABC is an angle and if B’C’ is a ray, then there is exactly one ray B’A’ on each “side” of line B’C’ such that ∠A’B’C’≅∠ABC. Furthermore, every angle is congruent to itself. If for two triangles ABC and A’B’C’ the congruences AB≈A’B’, AC≈A’C’ and ∠BAC ≈ ∠B’A’C’ are valid, then the congruence ∠ABC ≈ ∠A’B’C’ is also satisfied. I thought this was hilarious. ---
**Author:** ![Troppus](https://avatars.discourse-cdn.com/v4/letter/t/a587f6/32.png) [@Troppus](https://boards.straightdope.com/u/Troppus)\ **Post date:** [April 4, 2013, 2:40am UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/35 "2013-04-04T02:40:19Z")
> [@billfish678](#): > > You are not an engineer are you ? 🙂 Tester. ---
**Author:** ![standingwave](https://avatars.discourse-cdn.com/v4/letter/s/9de0a6/32.png) [@standingwave](https://boards.straightdope.com/u/standingwave)\ **Post date:** [April 4, 2013, 3:24am UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/36 "2013-04-04T03:24:06Z")
> [@Frylock](#): > > I thought this was hilarious. Thank you. 😃 ---
**Author:** ![Apollyon](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/apollyon/32/4238_2.png) [@Apollyon](https://boards.straightdope.com/u/Apollyon)\ **Post date:** [April 4, 2013, 4:31am UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/37 "2013-04-04T04:31:23Z")
> [@Broomstick](#): > > Pulling away is not a cue for you to pursue the current target harder, it will only lead to a comic chase around the bed, if not the entire room. At which point the mood music will switch from _Bolero_ to _Yakety Sax_. ---
**Author:** ![panache45](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/panache45/32/64_2.png) [@panache45](https://boards.straightdope.com/u/panache45)\ **Post date:** [April 4, 2013, 5:52am UTC](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707/38 "2013-04-04T05:52:43Z")
> [@the\_diego](#): > > We know that a man’s erect penis points or curves at least 45 degrees upward when the man is standing. No, we don’t know it, because for most guys it’s not true. [Previous page](https://boards.straightdope.com/t/questions-on-the-rear-entry-position/654707.md?page=1)