Alina Ending 0: Unrestrained Passion (penetrative sex): affection > 100, both not wearing pant(ie)s, Whisper to Alina, Fuck her!
Alina Ending 1: Patience Rewarded (paizuri / titjob): affection > 100, excitement > 70, not wearing bra, guy not wearing pants, Fondle Alina's breasts
Alina Ending 2: Delightful Promises (cunnilingus / eat her out): alina arousal > 100 and not wearing panties, Think, Eat out Alina
Alina Ending 3: Crossing the Line (intercrural sex): both arousal > 100, Alina not wearing panties
Alina Ending 4: More Than Friends: Time up, affection > 90
Alina Ending 5: Benefits: Time up, both not wearing pant(ie)s
Alina Ending 6: A Fleeting Moment: Time up, alina arousal > 50
Alina Ending 7: Harmless Fun (handjob): guy arousal > 100, guy not wearing pants
Alina Ending 8: Just Friends: Time up, no other conditions met.
Alina Ending 9: Overexcited (premature ejac): guy arousal > 100
Alina Ending 10: Pushed Too Far: affection < 0
Sucking her nipples decreases her excitement so if you want ending 1 you'll need to do something else like kiss or grope