So I can’t cum for nothing in the world idk what it is it feels good but it doesn’t push me over the edge I don’t cum from penetration only I Myself can make ME CUM when I play with myself

idk what it is but I need help because I want him to make me cum it just feels like I can’t vibraters work but I feel like he gets embarrassed when I bring it and I want him to feel like he can make me cum there are plenty of times when I’m close but nothing can ever push me over the edge HELPPP