I (29F) and my partner (53M) want to alleviate a couple issues in the bedroom

[zlaurilou94]

My partner is generally pretty sexually open and kinky (he enjoys giving me oral, has received anal from me, likes being tied up, tastes his own semen after masturbation, has a golden shower fantasy in which he is the receiver, and is happy with me bringing sex toys into the bedroom), but I really enjoy deep penetration and he has a small member (about 4 or 5 inches). He is also very overweight (to the point where he has to hold the lower part of his belly up before PIV insertion). We've found the best position we enjoy is the my legs on his shoulders one, because he gets to go a bit deeper and I get to feel him a bit more. The problem with this position, however, is that my thighs and hips start to ache and hurt; I think because he is so overweight

We bought a penis sleeve / extender but it was a bit too big for me, and we also found that it wasn't very firm so couldn't really be used. I also don't think I've found my "perfect" dildo, as it were, as they just feel uncomfortable for me

I was just wondering whether anyone had any specialised knowledge and advice for good penis sleeves / extenders, as well as a possible solution for the pain I get in my hips and thighs from the legs on shoulders position

We are in the UK, incase it is relevant

[Wiseman2]

Have you tried fetish and BDSM forums for kink communities or sex shops? 

[shouldhavelearned]

Is he interested in dieting and exercising to remove some of the extra pounds?