Looking for source

In search for a wholesome and cute hentai doujin that I read a few years ago

To summarize the plot (the one that I remebered):

The setting was on a winter night, there's a couple going up an elevator in an apartment complex. The male mc started to grab his girlfriend's ass, or leaned in to kiss her (not sure about this one), but she told him to wait until they'd arrived in their room. Once they'd arrived the girlfriend was like "it's too cold i dont wanna take off my clothes", but eventually the male mc strips the girl down and they had sex to warm each others bodies.

Also if I remember correctly I didnt read this on nhentai, but on Fakku with a trial account, although it was very long ago like around 2018-2019

TIA!