Granted, Mahiro's mother is more than a little quirky (and disturbingly comfortable around the beings of the Cthulhu Mythos), but it's nice to see that every so often, she just feels the need to give her son a hug. According to herself, that's her daily intake of "musukonium".
Zutto Be With You (Always Be With You), sung by Nyaruko herself. An upbeat, warm and sincere decleration of pure, romantic and idealized love that lasts forever.
Season 2, Episode 6. Nyaruko, who is very unhappy with Mahiro being so close to Kuuko, meets him in his room at night. Instead of trying to rape him, (Which she has attempted before,) She instead bawls her eyes out while she goes on about Mahiro ignoring the fact that she really does love him, and asks if he feels the same. When Mahiro convinces her he doesn't hate her, she spends the rest of the night in his arms.