Just let dev cook. And cuck, ahem. Ofc with love and happiness
And if our great nts savior (Positive!) want to show, that our male hero is really loved and he have willpower - I have easy solution in three steps
1 - Some guy is too persistent in lewd interaction with Ayumi
2 - We have a choice to interrupt or not
3.1 - If we do +control - we give a little good speech, that she is still our gf and we don't want to made things to far (If Ayumi lewd > control she can tease us more, but not much)
3.2 - If we don't +lewd - Ayumi and him will go futher, BUT she will stopped at some point because the same reason. She want it, but she love us more and don't want to hurt us or even herself (if she lewd > control she will go futher, but still will stopped)
Everybody wins. Mc can be strong, Ayumi listen to us when it's important and she herself can do things to make relationship and trust with us stronger
And this will work for combo Ayumi + everybody
AND for those, who want to see a full scene - maybe it will continue in mc erotic fantasy and become a new step in his desire and, again, trust (Because he just seen, that Ayumi love him and it doesn't hurt their relationship)
(I fucking love everything this autor do)
Also, "taste game" with blindfold may be good for early blowjob, but it personal opinion and I love what dev do rn