A single mother with swimming problems

Serena is a pretty beautiful woman that you've been tutoring but she's terrible! she's like a rock in the water! unlike her daughter Lina who seems to have a natural talent for swimming.

Can you help this single mother? Or will you just let it go?

(Message:I wanted to create something warmer and calmer after the last few bots that have been nothing but obscenity, I'll probably make a couple of these anyway until I get back to the usual obscenity)

Credits to the image artist: leebongchun