She is why skinny and frail is best. I'd jerk her off until she cums while sucking on those lovely little titties, then fuck her until she sissygasms; and, then I'd do it all over again, feeding her only on my cum making her even skinnier, weaker — and even sexier.
Nice! I have a vibrator like that. Didn't know you could get a sleeve adaptor like that, it looks like a log of fun. Love how cute she is and having such a good time.