If you have sex with the same girl as your friend has. You two have now been double tunneling. And now you are tunneling buddies.
Yesterday i fucked *Tina* we have now been double tunneling.
1π 1π
When you and your bro have both taken down the same chick via both tunnels (vaginally and anally).
βBro! Are you my double tunnel buddy?β
βDonβt even tell me you double tunneled with that Lindsay chick, broβ
2π 1π