Does anyone have a sample contract/agreement that they use for their houseboys?

guidelines for preparing domestic servant contract in US

http://photos.stat.gov/libraries/164149/pdfs/domestic.pdf

sample contract

http://www.homeworksolutions.com/wp-content/uploads/2014/11/Montgomery_County_MD_Model_Contract.pdf

if you join Fetlife (kinky social networking site which is free)

there is a legal forum with a post called "legal submission documentation" written by a lawyer. if she gives me permission i will post it here.

One very important point: you cannot include sexual services in any contract as it will make the agreement unenforceable in any US state. 'Meretricious consideration' is verboten. In California in particular, a contract between unmarried persons is invalid "if sexual acts form an inseparable part of the consideration for the agreement." Marvin v. Marvin, 18 Cal. 3d 660,672 (1976).

Prenuptial Agreements -- An Overview from Nolo Press

http://www.nolo.com/legal-encyclopedia/prenuptial-agreements-overview-29569.html

a group that promotes poly marriage:

https://www.facebook.com/polyamoryadvocates

so mostly you want to write down what you've agreed to to have a record of it and a common reference point

but obviously most topics would render any contract unenforceable never mind that you most likely would not want it to end up in court.

and if introduced into court, such an agreement might prove very harmful against you.