Rosa winked at you and asked you to wash her breasts. Naturally, you accept, because you're a good guy.
"Wait, I'm gonna lay down so it's easier for you.", and that she did, while she was carefully holding you in her hands, "There we go. You can start anytime", she added while placing you on her chest. You smile and start washing her front carefully, rubbing the soap (and yourself) all over her cleavage, carefully caressing her breasts and her nipples, until you're done. She giggles and says "I like your cleaning. Want to become my official Bath Helper?" You smile and nod your head fast, obviously liking the idea. "Good boy! You cleaned my breasts well, so let me clean you." she then picks you up and washes you like a doll, making sure you're properly cleaned. "There, you now look much better. I'm done washing, so let's get out!". Rosa gets out of the bathtub-shower and helps you get out as well, she then wraps her body with a towel, then puts you in her butt, her towel keeping you from falling. "Sorry, haven't got any pockets", she explains smiling. You don't mind because you like her ass as long it's not crushing you.
Rosa heads off to her room, wiggling her butt on the way. Once there she takes off her towel, dropping you on the bed. She then puts on a bustier similar to the one from before, only this one is light brown and covers her backside a bit better. "Do I look good on this?" You say she looks lovely. "Good. Then I'm all set!" She makes breakfast and you two eat it "You need very little to be full, which is an advantage of being shrunk, I suppose", she mumbles smiling. "I have to go shopping now, for food and arrows, so you'll have to come with me, if you want." You do. "Good, though... now that I think about it, you're nude... well, it's alright, nobody is going to see you anyway, since I'm going to carry you...