I'd like to know if you have done the smell and taste test of your own vulva.
Big dick small mouth means you will be holding his penis with your hand or hands around the base.
Sex with any partner is always very complicated.
Use your relaxed tongue on his arm to show him what would feel better.
So why would it matter if you use a vibe while you're fucking?
You are most likely having an orgasm.
The recommended approach for oral sex is to use a dental dam.
Most important is to communicate with your wife and listen to what she says.
It would be nice if you were more accepting of your vulva as a place of beauty and power.
If you've never masturbated, now would be the time to learn about self-pleasuring.