He did make the first move in vol. 4 ch. 5 and also in vol. 8, ch. 10 trough 11. He even kissed Morinaga first, yey! (twice) But it's going to pass a hundred years before Senpai shouts 'gimme dat dick' for sure :D
yes, I remember those moments in the chapters but I would like to see a more willing attitude while they're having sex, that also would help Morinaga understand that Sempai wants too... consensual sex in few words xD
OMG, i can't even imagine when that day will come. But when it does, WOOOOO damn, will that be hot as ever. xD <333
Sempai enjoys sex so much with Mori he can't refuse eheh they're so sexually compatibles that there's nothing he can do xD
btw I would like too to see him as the one who initiates because he wants to have sex, but we all know that we won't ever see this from a tsudere character unfortunately ç__ç