SiN2.0 Sex Information Network

Got a new iPhone and wanting to use it to impress your date? Check out these 10 resources that will help your date go smoothly and increase your likelihood of ending the evening with a sexual encounter rather than watching iPhone porn by yourself.

A new trend among young women seems to indicate that kissing and 'fooling around' with other girlfriends does not necessarily label one as gay or even bi-curious. Many of these girls do it actually to seduce other men, by playing on the knowledge that guys find two women making out to be totally hot.

This girl says she's getting along fine with her boyfriend and having lots of sex, but is annoyed that once he's come, he promptly showers and resumes watching TV or text messaging his friends.

Anyone who's been on Craigslist.org and browsed the 'Casual Encounters' section knows there's a lot of craziness that goes into finding a suitable sex partner. But if you keep at it, and are persistent, you just might end up with a good hookup (though it's certainly far easier for women to get laid here than men).

If you answered yes to this question and are a male, you are among the decade old species of "Freemales": men who are 'are single, child-free (not childless) and consider relationships (read romantic) a high-risk job'. I for one, am enjoyed being a freemale until I got married, which turned out to be a huge financial investment as I expected.

This woman has a new boyfriend and enjoys having sex with him, but can only 'do it' when she's intoxicated. According to this columnist, that's not such a bad thing, and points out that she will probably become more comfortable with having sober sex as time goes on and she gets to know the guy better.

She´s sooo hot!!! You always thought somebody like her, a drop-dead gorgeous supermodel, this real hottie is not interested in you?! Well, may be you´re right. But there a few simple tips and tricks that might help to change that...

It turns out that wearing a designer deodorant may actually make you less attractive to women, as it masks the complex chemical composition of your underarm sweat. New research shows that women are subliminally attracted to men's underarm sweat as it accelerates the release of the luteinizing hormone which controls menstruation in women.

Western Union has pulled the plug on offering its online payment processing services to two gay 'hook-up' sites in an effort to distance itself from casual sex businesses. The move reflects a general policy by Western Union to stop providing services to adult businesses in general and is not seen as a slight against the homosexual nature of these specific sites.

Having a “girlfriend” and “boyfriend” relationship has many drawbacks, beside having to have sex with the same person, this kind of relationships are more of a high risk investment than real estate. However, a friend-with-benefits relationship has many great returns, is a less stressful venture, and you can walk way as soon as you stock is down.