You should read Dekoboko Sugar Days and Dekoboko Bittersweet Days. Both are from the same series (DSD is first). Dekoboko Bittersweet Days got sex scenes and the seme is shorter than the uke. Really adorable manga by the way. :))
https://www.mangago.zone/read-manga/nirameba_koi/
https://www.mangago.zone/read-manga/joou_to_shitateya/
https://www.mangago.zone/read-manga/baby_face_monster_moto_banchou_no_ore_daga_kuso_gaki_ni_ketsu_wo_nerawerete_iru/
https://www.mangago.zone/read-manga/sv_koi_no_shinchoku_ni_tsuite/
https://www.mangago.zone/read-manga/oniisan_no_koto_sukinano/
https://www.mangago.zone/read-manga/melt_at_night/
https://www.mangago.zone/read-manga/make_love_first_time_in_8_years/
https://www.mangago.zone/read-manga/rational_pervert_romance/
https://www.mangago.zone/read-manga/my_neighbor_mitsuru_there_s_a_hot_young_guy_living_in_my_building/
https://www.mangago.zone/read-manga/shishi_ni_hire/
Thx
I love stories where the seme is younger and preferably shorter than the uke.
Any recommendations? Especially for shorter semes please