Hi,
A friend of mine is having this problem - she says she enjoys sex with her new boyfriend, however sometimes she just needs a little extra girth (his penis is a little thinner than she was used to before and now she doesn't feel satisfied enough).
I was thinking of sleeves, but that would really change the sensations from "skin to skin" sex. I even offered her sleeves and we were about to share an order to LH, but then she dropped the idea. So I am looking for other options :)