Artist is bingo_tarte
Source is otameshidouga_pretty_pridot_dounyuhen
Character is pridot

EDIT: http://deephentai.com/otameshidouga-pretty-pridot-dounyuhen/
Video for those who want to see the whole thing, I guess.

Listen to this while watching this gif: https://www.youtube.com/watch?v=T7YJCBcv-VI

Wait til some of the singing starts. It's hilarious.

Wow.. she seems pretty heavy. Or that's a REALLY bouncy bed.