[Bleater]

Since you have to atone your miserable sins, tie together at least 7 one meter long thick strings so that you have a flaggellum, do at least 3 knots on the each strings free end.

then

Go to a wild area, like a forest with your Gf, find a gravel path on other kind of painful ground, then strip naked (also barefoot), tie a dirty rag at your hips, and start walking hitting your back (not arse) each step, you must do at least 30 steps (and hits) plus the age of the guy you fucked, plus any other step (and hits) your Gf want add.
When you are over, she must handcuff you, with hands at your back, put collar and lesh, put nipple clips on,and she can play with yoour naked body until she want, thenshe have to drag you back to the start.