i will say this, idk if your aunt is the best person to be talking to about these guys you are interested in, you may want to find someone whom can be un biased that you trust, if you had a brother that could be really good or someone else close to you( a best friend, really good friend) i know she is trying to protect you and not see you hurt & means well..but it seems she thinks every guy is a snake in the grass, if you have no one to talk to you can really trust, trust your gut, go with your intuition..in my experience a woman's intuation is rarely wrong, you just have to learn to listen to it, guys do like to have sex, but so do women. the media would have you believe that women don't enjoy sex as much as us guys do & until a few years ago, they had me fooled too! fortunately i have several ex girlfriends that i'am still really good friends with that have done wonders helping me understand a great many things about women,relationships and keeping a woman happy. the best thing you can do with these guys is be open and honest about your expectations, have an adult conversation with them while dating..some things probably shouldn't be brought up on the very first date, but feel them out. some guys are out to "hit and run" others do want a sincere stable relationship. let things happen naturally, if a guy is pressing hard for sex on the first date, that's likely all he wants. when things happen naturally, you'll know it. that doesn't necessarily mean if you chose to have sex with a guy on the first date he's gonna run, but the process and how it came about, people give off clues as to how they are all the time. if this one guy shares a lot in common with you, maybe you guys could do some common activities that you both enjoy together and see how things go from there..most importantly have fun & enjoy yourself & don't play any games, guys hate head games and you might have a good one & don't want to blow it! good luck!