Sapphic... erotica...
That could be one of two things.
Friend looking at lesbo porn or mom being bi-curious/lesbo? :-D
If by "sapphic" they mean "lesbian" yes.
But if by "sapphic" they just mean "feminine and sensual" then not so much.
As far as i know, when it comes to the interwebs, sapphic has 1 meaning

hehehe
She was looking for smutty lesbian literature. There's some classy stuff out there.
The 'erotica' makes it classy. duh.