It does increase during those events - you just don't get a level every time you give a handjob. In general for those perks, currently, you need to do the associated action:
| Level | X Times |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 8 |
| 5 | 11 |
| 6 | 15 |
| 7 | 19 |
| 8 | 24 |
| 9 | 29 |
| 10 | 35 |
Thank you very much. However when I performed a handjob several times, (the only instances of the it being from prostitution, dullahan, and catgirl interactions), in my profile i dont see my handjob sexual experience go up in profile. it remains at 1, as in, if i trigger the event multiple times, in my save, it only counts 1 handjob encounter for that character.
i.e. I go on multiple dulahan dates and give a handy under the table, however it only says that I did it 1 time with the dullahan.
"edit: I may also not be understanding the save profiles correctly, but for 'unknown' count being relatively high compared to the 1 that i get for dullahan after triggering her date multiple times, I get this feeling. If I misunderstood the save files that could also be the case."