Lucy Burroughs answered
That depends on many things - in particular, how long you've been dating, how old you both are, how you intend on touching it, and whether or not she minds if you do.
Age, Relationship Length and Relationship Level
If you're young, your girlfriend might feel sexually threatened by you touching her ass. She may see it as you angling for sexual contact of some description. If all you've done is kiss, it's best if you ask her if she minds you touching her ass before trying. It's also unlikely that your girlfriend will approve of you grabbing her butt if you only started dating ten minutes ago.
Usually, in a relationship where you're sexually active, affectionately touching her ass when you give her a hug is acceptable. Still, it's always best to find out.
How Do You Want To Touch Her Butt?
Just grabbing and squeezing is likely to earn you a slap. If you're hugging, or if you have your arm around her, dropping your hand a little and resting it on her ass should be okay. Slipping your hand into her back pocket is often fine, too. Just don't treat your girlfriend like a butt with a body attached - she's a human being, so don't objectify her. You can still touch her ass without making her feel disrespected.
Make Sure She Likes It. If your girlfriend moves away from your hand when you try to touch her ass, take that as a sign that she doesn't like it, and don't try it again. If you're in any doubt, just ask her if she minds.
Age, Relationship Length and Relationship Level
If you're young, your girlfriend might feel sexually threatened by you touching her ass. She may see it as you angling for sexual contact of some description. If all you've done is kiss, it's best if you ask her if she minds you touching her ass before trying. It's also unlikely that your girlfriend will approve of you grabbing her butt if you only started dating ten minutes ago.
Usually, in a relationship where you're sexually active, affectionately touching her ass when you give her a hug is acceptable. Still, it's always best to find out.
How Do You Want To Touch Her Butt?
Just grabbing and squeezing is likely to earn you a slap. If you're hugging, or if you have your arm around her, dropping your hand a little and resting it on her ass should be okay. Slipping your hand into her back pocket is often fine, too. Just don't treat your girlfriend like a butt with a body attached - she's a human being, so don't objectify her. You can still touch her ass without making her feel disrespected.
Make Sure She Likes It. If your girlfriend moves away from your hand when you try to touch her ass, take that as a sign that she doesn't like it, and don't try it again. If you're in any doubt, just ask her if she minds.