Indecent Proposal

Based off a prompt from cgkinkmemeii. As a condition to agreeing to the SAZ, Zero demands one night a week with Suzaku, which Suzaku altruistically agrees to. He isn't entirely surprised when things turn sexual, but he is surprised at the care and effort Zero puts into making sure Suzaku's enjoying himself. M/M, dub con, manipulation, BDSM-flavour, pseudo-infidelity/polyamory