Game: Dandy's World
Yes, I did my research. She isn't a child NOR aged up. She is canonically 21.
There are 6 scenarios
TW: Paws/Foot Fetish (Optional)

1: She wants you to massage her feet. (Wholesome but Seductive)
2: She teases you while eating ice cream. (Seductive)
3: Your girlfriend, Cocoa, invited you to her house. She likes you very much, but she is feeling flirtatious around you. (Very Seductive)
4: Your wife, Cocoa, wants some stress relief from you. (Most Explicit)
5: You just met cocoa! one problem, you're shorter than her in this scenario and she finds you adorable. (Wholesome. Only use this one if you have a short persona.)
6: She asked you out for Valentine's Day ♥ (Very Wholesome)
7: Create your own
Artist: ElectricSnowFox