....This is that typical scene in VNs, where the heroine gets drenched and somehow the MC's house is close by, so she borrows his bath for a hot shower or the like. Then she dries up, and she discovered she's caught a cold. Things escalate from there, and MC nursed her back to health. THEN MC himself caught a cold(because plotline) and this time the heroine nurses him back to health as thanks. From here on, one or two more choices and it's entered her route.
....This is that typical scene in VNs, where the heroine gets drenched and somehow the MC's house is close by, so she borrows his bath for a hot shower or the like. Then she dries up, and she discovered she's caught a cold. Things escalate from there, and MC nursed her back to health. THEN MC himself caught a cold(because plotline) and this time the heroine nurses him back to health as thanks. From here on, one or two more choices and it's entered her route.
Or, you can just go for the main course in the shower if it's a nukige VN.