Sim: Backdrop City - Kawaii Scenes slurl
Pose: [RI] Park Ur Tushies - Dooonut - Strawberry 
Unfortunately, this is a gacha item. You could ask the creator, Harley Heartsong, if she has it available with normal permissions to purchase. She only likes to be contacted by notecard.

Tastic - Big Or Small Top - Exclusive @ Rock Your Rack Event Sept 29 - Oct 8
This top purchase gives 50% donation towards charity
I'm wearing Belleza Gen.X Classic
BELLEZA(GENX CLASSIC | GENX CURVY)/KUPRA(+KUPS)LEGACY(+PERKY)/MAITREYA(+PETITE)/REBORN