The Favor (2004)

Mora and Roberta, an Argentinean lesbian couple, are desperate to have a child. With no scruples and hesitation they work out a plan; Roberta will seduce and have sex with Felipe, Mora's brother. Felipe is a hermit who lives in Patagonia earning his living artificially inseminating turkeys. Sure enough, things won't go smoothly. Felipe isn’t easily seduced, and when an unexpected visitor turns up – with surprising news -- everyone will get more than he/she has bargained for!