So Jim has patently been trying to grow his "friendship" with Spock into what Prime!Spock had spoken of but just as he is ready to confess his attraction to Spock he catches Bones and Spock in the act. Heart broken but still happy that his friends are happy Jim carries on like nothing has changed. Until they meet alien species A and are asked to take part in a sacred ritual. In order to complete the mission they agree only to find out that it requires all three of them to have sex with each other in a scared temple/in front of an audience, etc. Afterwards things begin to go downhill fast as Jim can't stop thinking about it and about how Spock doesn't want him and his best friend still doesn't trust him enough to tell him he is in a relationship with the guy Jim has fallen for. If that isn't bad enough Jim finds out that he had latent engineered DNA which allowed him to become pregnant with Spock &/or Bones baby. Do Bones & Spock figure it out? Is there a happy ending?

Angst

Dub-con

Aliens-made-them-do-it

S/B

S/B/K

K/S one-sided

Mpreg