When you start having sex does it make you gain weight? or lose weight?

I've become sexually active and since then my thighs have become thicker and my stomach a little pugy-er.. is this because of me having sex? Anybody know or experiencing the same thing?When you start having sex does it make you gain weight? or lose weight?
No, it will not make you gain weight. Well, it can make you gain weight... but that is called pregnancy. Chances are if you are in a steady relationship you are just gaining "relationship weight". This tends to happen to people when they start to feel happy and comfortable with their partners. Women start to eat more, enjoy themselves and spend a lot of time vegging out and snuggling. So, if you have ruled out pregnancy, it must mean you are just happy.
It's not from having sex...sex burns calories.
Sex will not affect your weight. Yes, sex is a good work-out, and does burn a lot of calories, but it shouldn't change your body size or shape noticeably.
no, your body shape changes should not have anything to do with your having sex now. it has to do with what you eat and all and how your exercising routine has changed or something.
haha
sex doesnt have an affect..
but pregnancy sure as hell does.
Sex isn't fattening. Stress can be.
none of the above.
Maybe you're over eating because your happy.
That's what i did when i got with my boyfriend.
Without knowing your weight prior to sex perhaps your body is maturing or perhaps your are eating more. No-I don't think sexual activity generate weight gain.
Go check if your preagnat pronto. or maybe its just hormones. but go check it better being safe then sorry