I met my girlfriend on tinder and our first "date" was just sex, no dinner, no movie, just sex. Should I get serious with her?

She wants to skip all the preamble and just get straight to the sex? Sounds like you've found every guy's dream girl.

Your buddy might be right about her, but he's also an idiot. It's true, girls who have sex on the first date are also often the type of girls who drive off cliffs and start fires in bathrooms for no apparent reason. But believe me, there are no guarantees that the girl who won't have sex until she's legally married is any more stable. No guarantees at all, in fact.

I've dated several girls who said yes on the first date, even a few where sex was the first date. But I've also dated (and converted) more than a few pristine virgins, and they were just as kind of totally insane as the slutty girls. That's because there are almost no guarantees. There are a few girls who openly share their crazy with everyone, and you can spot them a mile away, but most girls tend to save their crazy up for special occasions.

You don't know how crazy any girl is after the first date, you need a bit more time than that. My wife didn't let her crazy come out until we were engaged, then it showed up with a vengeance.

Any tips you can share on how the rest of us can get some of this?????????? :D

Date the girl and ignore your friends.

I would say you both are not very smart.............have you seen her Dr's report that she has no diseases and vice versa ??

If you and her are going there is no reason to end it. Like maybe don't have a serious relationship with her. But just enjoy it while it lasts

Well, double standards there isn't it, because it takes two to tango. She didn't have sex with thin air. You should judge your relationship by how she makes you feel and if you are a better person when she's with you. Why would you ruin it now? If you can't get over the fact that she had sex with you on the first date, that's your problem and maybe your friend should stay out of it.