While not hardcore, there are suggestive scenes (including a morning kiss that borders on non-consensual since Mirai is half-asleep). The OVA is rated R-15+ in Japan, but many viewers find the father/son context makes these scenes uncomfortable.
[Title: Super Lovers; Papa to kiss in the Dark] : r/BoysLoveAnime Papa to Kiss in the Dark 1 VOSTFR-
We have tons of pedo/shota adjacent Anime but no Yuri On Ice season 2. ... You're right! They.. Reddit·r/BoysLoveAnime Anime: Papa to Kiss in the Dark - AniDB While not hardcore, there are suggestive scenes (including