I have definitely found not smoking too much herb is a good thing with MDMA, it can somehow reduce the special qualities for a while if overdone.
Just good music, maybe some furry objects?!?! Silk and velvet cushions or something?? Things that are sensual for your more tactile moments would be a winner.
I wouldn't suggest a blowjob - I would suggest AGAINST a blowjob OMG, jaw clenches galore is NOT a time I wanna be receiving a bj. NO TANKS>
A massage sounds like a good idea...and a shower - STILL haven't had one on MDMA!!! It's good on 2C-B though...
Whenever I roll with the wife at home we get cleaned up, lay out some blankets in a comfy spot, turn on the music and watch some porn. Then fuck like porn stars all night long - viagra makes it even better.