Answer
Hadhrat Abdullah ibn Abbaas (Radhiallaahu Anhu) narrates that the Aayat, ?Your wives are a tilth (farm) for you, hence, go unto your tillage as you wish?? (Baqarah 222) as revealed to Rasulullah(Sallallaahu Alayhi Wasallam), hence, go from the front, come from the back, but stay away from the anus and the time of menstrual cycle.? (Mishkaat 276)
Refer sexual etiquettes from the website
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai