Yeah, there will be anal further down the line for sure. I just wrote that idea down. I plan to have 9 test methods (I think that's roughly the amount the original game had), currently I have 8:
1. Handjob (too fast); 2. Nipples (perfectly pink); 3. Blowjob (lewd expression); 4. Armpit (no hair); 5. Boobjob (lactation); 6. Pussy (no hair); 7. Footjob (sweaty); 8. Anal (always cums)
I left out pussy penetration sex because I want that to be related to relationship development/temptation scenes, not as one of the tests.