Erotic massage studios in Lima don’t beat around the bush. They are not even trying to hide that the massage is just an intro to a full course meal. Some studios even allow you to skip the foreplay and rent a regular room. They are spread across the city and the prices depend on the area. Sensual massage in Miraflores will cost you more than service in the suburbs. About $60 should get you full service in some of the better spots.
Masajes San Boria (http://www.masajessanborja.com/) at Avenida San Borja Norte 610 of. 504 is a good start. You can even set up an outcall with massage service agencies in Lima such as Masajes Lima VIP (https://masajeslimavip.com/), or look up some of the chicas offering masajes eroticos on the local classifieds sites.