I can’t feel it?

Recently starting having sex with someone new but I can’t feel it.. he’s a good size and I continue to have sex as I like making him feel good and I like the intimacy but I’m afraid once the honeymoon phase is over I’ll have no interest in sex if I’m getting no pleasure.. anyone have any tips for me to be able to feel it ? I’m worried it’s the girth size that’s the problem as I can feel it with my vibrator but not with his dick.. help cause I love him lol