FROM THIS DAY FORTH ON IWAKU GETTING TO SMUT WITH A NEW PARTNER WILL BE CALLED "BREAKING THE COCK BARRIER"
but for real though breaking the "cock" barrier with a new writing partner is rough. I've wrote shit that could make sailors blush, but writing with a new partner is always tough.
I dunno, I'd argue that there is a difference, albeit not TOO much of one between broaching NSFW topics or even sex, and getting down to actual "smut". For example, my character in the rp I referenced had already had a sort of humorous "oops I'm naked" scene in the RP but I don't recall using any euphemisms.
There's a barrier too between being clinical/vague or using weak terms like "member" and hitting your partner with the ole "His splendiferous siren-slaying salami", or the classic "Meat-mashing murderboner", you know? There comes a point, at least in a significant share of my 1x1s where I'm like, "Can we just call it a cock or whatever? What are you comfortable with?" because I'm long past the point in my writing career where being that vague is satisfying, but I'm also reticent to bother my partner with a buncha dirty words they aren't ready for.
I would call
that "the cock barrier", in my experience, and I hope I'm not alone in that department.