you know if your good at sex when your partner is either screaming yelling yes! moaning uin a good toan.......trust me u will know....
When you enjoy it and so does your partner.
I don't know go ask your big fat mama!
If you need to ask you don't need to know
with a smile and joy
you need to dump this guy immediatly he obviously thinks your good in bed and wants to " get to know'' your sex life better
Ask your partner and make sure they tell you the truth
Usually, the person you're having sex with is bold enough to tell you you're good. Also, it's usually easy to tell by the look of ecstasy on his/her face. Good luck.
If you want to have sex than yes but not to hard
If you have ever had sex, not oral sex, but SEX, than you are not a virgin. If you haven't had sex, then you are. And that's how you know.
Unless you don't know how to do it, then yes it's amazingly satisfying and helpful.
Sex is so good because the sensation from the opposing sex is soo good :) .