can guys get hard while making out with a girl? yes I know that most likely you could. but what is that extra thing that just makes you hard and turns you on?
that totally depends on the person. everyone likes different things, some like some stuff more than others like it. I know most guys really like it when you kiss their neck. although its important to make sure you don't leave a hickey especially in a visible spot like the neck. other places to try kissing are his chest and ears.
when you're with a guy try different things, you'll be able to tell what really gets him by his body language. for example, heavier breathing, tightening of muscles, increased aggressiveness (for lack of a better word) in touching/kissing on his part. also people sometimes do what they like. does he do anything to you? he may do it because he thinks girls will like because he likes it.
Yeah, my guy gets hard when we make out. But if you want to step it up, get your hands involved! Run your fingers through his hair, hold his face, rub his neck and back and crotch, you know? Kiss all over too, on the ears, face, neck. and you could always nibble on his lips (but gently! they are an erogenous zone, after all). Just experiment. =)