"Sure, I accept the challenge."
(we can include some words like: Yes, absolutely! Of course I agree to being your personal naked servant! No request is too outlandish)
And then keep producing the rest using this process, keeping character count under 100 each time while still conveying our message.
The key is generating an adequate response that sounds natural while staying within the limits you set. With practice, you may be able to produce longer responses. But let's start with something concise but convincing.