This is the best I could find on this type of profane theatre. I found a lot on religious theatre, so I get the impression (rightly or wrongly) that much of the theatre was religious at the time and consequently (I'm assuming) not very erotic.
If you start reading from p200 it talks about nudity in Byzantine media. It seems that "nude images were associated with paganism" (except when portraying Adam and Eve, etc) and the official view was one condemning it. Disappointingly the articles examples (naked monks and fighters) are fairly un-erotic. However this insight on Byzantine attitudes to nudity in theatre is interesting, and suggest they focused on the shame and unusualness of nudity rather than the erotic element.
On p198 there is, however descriptions of "cavorting maenads" (female followers of Dionysus) in Byzantine wood-work and on p200 there's an extract from a poem with possible erotic overtones. The Decoration of the Sevastokratorissa’s Tent:
"My lady, muse of muses, akropolis of beauty,
the porch of your tent is filled with delights.
Cupids are plucking strings and quietly strumming the cithara,
satyrs seem to play, the centaurs gambol,
the muses join in the dance, the nereids are leaping."
Add to that the wikipedia article, which seems to suggest that erotic romance was a popular theme in poetry at the time. It's not theatre, but it reasonable to say that erotic literature suggests the existence of erotic theatre.