A teaser on the local CBS affiliate during last night's airing of the Big Bang Theory led me to google and Melissa Rauch's movie "The Bronze" is finally scheduled to be released on March 11. Still no confirmed specifics about which bits are her and which are of a body double though though the general speculative consensus is that the "acrobatic sex scenes" use a body double, but it's possible that other (topless?) bits are actually her. To quote from a discussion at ancensored:
"HSHP on September 25, 2015
Unfortunately Melissa's nude scenes in "The Bronze" have already been confirmed to be a body double.
trented1234 on September 25, 2015 Responder
@hshp It wasn't confirmed, it was really ambiguous. What I heard is that the more acrobatic parts of the scene were a body double but it's unclear how much is her and how much is the double. I think the key to this mystery is that Mr S has her listed with 2 stars for Brief Nudity. For other actresses who only used a body double such as Elisha Cuthbert for instance, he will only give them a 1 star for No Nudity. The fact that she has 2 stars means that she actually gets naked if you ask me."
Presumably, "Mr S" means Mister Skin (the website). I'm not holding my breath either way, but am curious of course... in most publicity stills for The Bronze, she looks a bit skinnier and smaller than we're used to seeing her on BBT.
The Bronze release date March 11, 2016 ULd Melissa Rauch