love nest

noun3

1. •
   (informal) A residence, especially a condominium or cabin, where a couple (particularly a newly cohabiting or married couple) can enjoy each other's company.

   • You two may enter the real estate process assuming that finding a little love nest is simply a matter of spotting a dream pad, placing an offer, and picking out curtains. — 2003
2. •
   (informal) A place suitable for or used for having sexual intercourse.

   • She even purchased a Mexican-style house to live in which she described as her "Los Angeles love nest". — 1980
3. •
   (informal) The vagina.

   • She [Anka Radakovich] has given us her personal tips on oral sex—“whatever you do, keep your tongue moving ... occasionally some women like a finger or two inserted into the love nest”. — 1995