I never actually made something liek this so let's try it. I'll give a small explination to each point.
F/F- From what i've seen this is one of the most popular pairings in the fetish community and I enjoy it. It's easier to do a switch rp this way and it's kinda fun watching 2 girls tickle and play with eachother. XD
M/F- This is more romance than fetish. I mainly do these with romances since it's pretty easy to rp. Though I do love lesbian romances, These are just as great.
Foot fetish- This is one of my 3 main fetishes here. I just find it kinda hot to see 2 girls worshipping eachothers feet. Plus it is a cute thing to se ein submissive