Please don't be mean to Parker, he's literally a teenager and is learning. Curtis is really old so he knows more about life. I recommend for y'all to read the comic first before making assumptions of who's better.
I bet the reason why curtis isn't pushy like parker is beacuse he is a Feral beast. Feral beasts aren't usually treasured and loved by Females. He maybe felt that being with snow is more than enough than copulating.