Thinking about it, Aaron went as far as he could with Alice, because we know she wouldn't agree to have sex with him, at least for now, since she thinks more about David. And one thing I noticed in this update is that Aaron mentions having sucked Alice's boobs and I believe this was shown happening in that scene where he enters her room and shows her "dreaming" about her brother masturbating her and sucking her all, this probably happened between Aaron and her, but in her "dream" she imagined David in his place and believes that everything was just a wet dream. As for this situation, if Daval's idea is to bring Aaron closer to Alice in this way, it will seem quite forced in my opinion, since up until now there has been no consent from Alice, unlike David x Sarah and currently Aaron x Sarah...