Depends entirely what types of “movie” you watch…
Having the freaking phone ring in the middle, deciding to ignore it (I love you too, dear), and it turns out to be my mother-in-law leaving a message on the answering machine about her best friend’s colon surgery.
Somehow, the magic was gone.
Regards,
Shodan
How about when the dog gets a little too friendly and places his cold nose on SO’s scrotum? Guaranteed to deflate the horniest of men!
Or going down on him (or her) and having to get the short hair out of your throat? Hopefully without gagging.
I once stood up, after the act, and sneezed.
And shot a wad of deposited jizz straight on to my big toe.
Honey, look!
I’ve never seen that in a movie…
Good one, Dogzilla, that one made me laugh at work, luckily I’m alone in the office.
Here’s mine:
Sig and soon-to-be-wife, Christmas night, 1994. Sig gives wife video camera, ostensibly to film our upcoming honeymoon in Europe. Later that night…
Girlfriend: “It’s not recording!”
Sig: “Yeah, it is, I turned it on!”
Girlfriend: “You pushed the red button?”
Sig: “YES”
Girlfriend: “It’s not recording!”
Sig: “Yes, it IS!”
Girlfriend: “Say what you want, it’s not recording!”
It’s always funny to get that videotape out when she insists she’s right about something, these days.
The sex you don’t see in movies: Where the guy and gal hook up one (1) time and she doesn’t get pregnant.
…Or an STD, or have an orgasm, or…
How about the simaltaneous head butt, finished off with a nice tongue bite? Ow.
Or while she’s working you with her mouth she scratches you with her teeth? That killed my/ mood.
I can relate to the cat posts. He’s done it all including taking a swipe at me. My GF laughed and called my cat a cutie?? That stopped the mood as well.
You don’t see movies, even porn, where the’s guy’s finished so many times that he can’t finish and has to stop. When my GF and I went to Blue Mountain ski resort for 3 days we shagged so many times the first night (5) that in the morning, she was trying to finish me with her mouth and, well, ended up with a sore neck 
There is a French Canadian movie where the sex scene takes about 14 seconds, or about 3 thrusts and after he finishes, all he can say is, “Sorry, Solidad.”
A lot of these are very familiar, but the weirdest for my wife and I was when our daughter asked “Mommy, why are you going oh, oh, oh?”
santorum.
I had to duck my head and cover when I read that, everyone in the office wanted to know why my face was red and I was laughing so hard!
Struggling with the plastic covering on an unopened box of condoms. This is even funnier when the struggler in question is attempting the feat with only one hand and his/her teeth because the other hand is engaged in trying to maintain the ‘mood’.
One or other partner attempting a new ‘trick’ and failing completely (e.g the ‘no hands’ method of putting on a condom).
How in the world would you put on a condom with no hands?
With your mouth.
Oh, but someone else has to do it. You can’t do it for yourself.
Requesting a “do-over” b/c the first time was literally only about 2 seconds and not even a full thrust.
Granted, you hardly ever see sex between two men in the movies at all . . . but I guarantee you’ll NEVER see this:
Gentleman #1: Oh yeah. Oh YEAH. Uhhh. Oh! Yeah—! (etc.)
Gentleman #2: ARRRRGGGHHHH!!! OWWWW! Pull out! Pull out! Pull-out-pull-out-PULLOUTPULLOUTPULLOUT!!!
(Small damp popping noise)
Gentleman #2: Damn hemmorhoid! I thought it had finally gone down.
Needless to say, that took the starch out right quick. Not to worry: we just made popcorn and watched AUNTIE MAME.
Oh, ugggh. Normally my libido is reminiscent of an adolescent male (even though I’m a 42-year-old woman) and where sex with my man is concerned, the word “no” is practically never in my vocabulary. In fact, the only time I DO use that word to him IS during “that time of the month,” for this very reason.
Hey, Klingons find bone-breaking sex extremely erotic. They even believe that if the bride’s clavicle is broken on the wedding night, it’s a sign that the marriage will be a happy one.
On this note, in the Star Trek movie “Generations,” when Dr. Soran hit the Klingon woman B’Etor in the mouth, not only did she pull her knife on him, but she said to him, “I hope you were performing a mating ritual…” (He wasn’t.)
Sorry. I’m a major Trekkie and when you said you’d broken your partner’s nose while having sex with her I could NOT resist kicking in this info about Klingon mating practices.
BTW I’m not a Klingon.