Am i loose?

Hi everyone
I was with my last partner for 9 years and I've had 2 children, I've recently met someone new who has a slimmer penis, I haven't had sex with him yet as I'm a bit shy and think i may feel a bit loose as my X was very big.
I've also slept with a smaller guy to my X and I didnt feel much but I think he enjoyed it more then I did...lol
Any answers would be grateful

I do pelvic at home and at the gym, just not sure what the other person may think. My sex life was great with my X