Again... I don't see what they're all getting nosebleeds for...
Neither of those questionably female entities has any sort of secondary sexual characteristics, and we're not in any position to confirm the primaries either.
It is visually no different to a boy rubbing another boy's chest.
The probably reverse-trap remarking about the maybe usual-trap having "grown" is meaningless... as even 0.001 qualifies as a growth from 0.000. There is still basically nothing there.
Too many gender-anomalies in this manga.