I feel smallish because I have thin girth. I was married for 20 years to a woman with a large vagina where i felt she never got much out of having my cock in her. She just seemed in a hurry for me to finish, which was often difficult because i felt very little stimulation which caused me to lise my erection.
I tried to pleasure her in other ways. Turned out she was not really into sex ... she had lots of hangups! Would not let me use fingers or toys at all. I finally got her to let me do oral on her and she seemed to learn to enjoy that a little.
Now I'm divorced and have been in a 7 year relationship. While my cock fits my girlfriend much better than my ex, and we enjoy intercourse, its my other game that gets her off. I've learned to use my fingers like a master, inside and out, to give her massive multiple orgasms!