

1. Reddit user casualiama confesses: "I had sex with some uncooked pizza dough." He adds: "In short, it was one of the best things in my life." This American Pie-esque reveal raises the question: What do you do if your guy likes having sex with carbs or other foodstuffs?

Well...if your guy enjoys boinking pizza dough, be sure that he uses a condom, Dr. Allison says: "Not because he risks getting the pizza pregnant, but because you don't want to get a yeast infection from the yeast in the dough when you and he cook up some of your own fun." But to put this in perspective, she notes: "Some people enjoy getting it on with inanimate objects...a vibrator or a dildo is an inanimate object, right?" BUSTED!

2. Reddit's regretfulbadger is carrying around a steamy sexual secret: "I want my girl to pound my ass!" He spills: "I have a massive ass fetish. I love grabbing, biting, slapping, rimming, and f*cking her ass. I want to have my girl do me in the butt. I once came for her just thrusting a butt plug into my bum. How do we go about fulfilling my fantasy? I found this toy called the Feeldoe which is essentially a strapless strap-on-like dildo. Should we use this?"

"Not that everyone has to be into everything, but it's refreshing to hear from a man who isn't all about 'one way' butt play," Dr. Allison notes. "What you're describing is a term Dan Savage's followers helped name, which is called pegging" (translation: "when a woman penetrates a man's anus with a strap-on dildo"). She recommends buying and watching Tristan Taormino's Expert Guide To Pegging, which she calls both super-hot and super informative.

3. "I have a fart fetish," Dascalio told Reddit's sex-chat channel. He wonders: "What should I do? Should I embrace it? Would a girl think it's weird if a guy asked her to fart on his penis?"

Dascalio, you're not alone! A recent study examined the case of "Brad," a guy with a passionate case of eproctophilia. Yes, he gets off on women who pass gas. Balk all you want, but Dr. Allison says: "Embracing what turns you on is usually a good thing for self-esteem as long as it's safe, sane and consensual." But will a girl think it's weird...uh, can't hurt to ask? "If it's something you really enjoy having done to you, there are probably other people out there who enjoy doing it, too," Dr. Allison points out. But if a partner says they're not into it, drop it right away.

4. "You better sit down for this," Reddit's SillyRocket wrote: "My wife has a poop fetish and has orgasms while pooping." We can't help but ponder: How safe is bringing poop into the bedroom?

"Feces and vaginas are always a bad idea—not because getting turned on by feces is bad, but because bacteria in feces isn't vagina-friendly and can lead to infections," Dr. Allison says. She suggests using gloves—and lots of plastic wrap—to keep feces from coming into contact with skin and genitals.

5. "How much is too much come?" asked Reddit user 2crazy. "I come a lot after sex (like two shots worth). Is this normal? What is the average about of semen a guy ejaculates after he has an orgasm?"

Everyone is different. "Some men ejaculate more than others, and ejaculations can vary from orgasm to orgasm. As long as you're not in pain and the sex you're having is consensual, rock it out and enjoy," Dr. Allison says. And if your guy comes a lot, just keep a towel nearby.

DreamWorks Pictures

"Just by making contact with a girl, i get an erection," HwKer lamented . "Help!?"

Indeed most men have experienced getting a boner when they weren't trying to get one. To cope, Dr. Allison suggests two options: Explore breathing and visualization techniques to see if you can develop the ability to quiet the arousal with your mind, or embrace the erection so as not to shame your body. (Ladies on the dancefloor, beware.)

7. "I had sex with my wife while I was asleep," spilled Reddit's M_C_K: "I kind of came to to find my wife on top of me, riding me. I then drifted in and out of the dream for quite a while, but the whole time I continued to have (rough) sex with her."

Welp, sweet dreams indeed! Sex while sleeping is called "sexsomnia." According to studies, it mostly affects men and happens during sleep where the cortex — the thinking, planning, awareness part of the brain — gets switched off, but the brain stem, the part responsible for the basic urges like the drive to eat or have sex, is still working. Depending on the person, sexsomnia can be exciting and interesting, but in some cases, it may be destructive and abusive. If things feel like the latter, seek help from a therapist.

8. What if two people just don't fit together during sex? Reddit user 6168675309 says he's "6'3", 215 lbs, she's 5'3" 105 lbs...Being with this girl, all of the angles seem wrong. I just couldn't quite get a hold on where to put my hands and feet. It seems to be mostly the missionary position that is causing me trouble. Any advice?"

There are a lot of creative ways to make up for a difference in stature! Try straddling him while he's sitting or laying down. If you don't always want to be on top, spooning is another great height-equalizer. Lie on your side in a semi-fetal position, and have your boyfriend lie behind you in the same configuration.

9. Is there really such thing as tantric sex? "So I keep hearing stories of sweaty, mind blowing sessions lasting for hours, and I want to know HOW!" exclaims Reddit user throwawaysexycunt. "Is it just pounding the whole time, or do you take breaks? Do you guys come several times, or do you just delay it waiting for the right moment to finish it off? What about foreplay, and what can I do as the girl to make the sex last longer?"

Great news: hours-long sex is totally possible! But: it depends on what your definition of "sex" is. "Communicate about what you want from each other and then do it really, really slowly," Dr. Allison advises. "If you want to really experiment, explore tantra and Taoist sexual practices, which include various approaches to prolonging orgasm and ejaculation in men so that they can last longer. Or, just draw out the foreplay before you two start really going at it.

10. Reddit's just1question12 wants to know:Is "the way a girl's vagina looks a direct indication of how much sex she has had?" In his experience, "some vaginas look like they have never been touched and others look like they have seen a few penises in their day." (He adds a polite disclaimer: "Sorry if this is too inappropriate to ask or if I am an asshole for asking.")

Actually, the notion of a "stretched-out vagina" is a myth. "You can't tell how much sex anyone—man or woman—has had from what their genitals look like," Dr. Allison says. "We all have preferences on what we like things to look like, but profiling someone's sexual experience from how their genitals look is just a bad idea."

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Photo: Universal Pictures, DreamWorks Pictures

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