old men ukes

First-year college student seme x old man uke.
Uke's age is not specified, but he looks like an old man. Uke is friends with seme's father and has been in quietly and hopelessly love with him since. Seme has, in turn, loved uke since he met him as a child. Now that he's in college, he moved in with uke and intends to conquer his heart.
A bit sad and bittersweet, with an ending where there's hope that uke will return seme's feelings, but he hasn't yet.

29 y.o. subordinate seme x 39 y.o. boss uke.
Boss is a charming old man. He's afraid of change, of leaving his comfort zone or changing his habits. He's envious of teenage girls, wants to go to girly cafes, gossip, take photos like they do. Subordinate suggests he does just that so that he can enjoy his life like teenage girls do, offers to accompany him. Subordinate's secretely in love, courts boss under pretense of respect for him.
Sweet and cute, realistic.