nope, so far red is only used on Secret (Lydia), for those that missed initial chance and ask about red injection got another chance later in lab. for any future use keep an eye on future progress logs, for when will come in effect.
but my guess would be no sooner when bdsm upgrade time will come, for next update (after 0.20) there are still plenty of prego sex scenes to do and its strip club progress take over and after strip club the strip club pregnancies (for which ppl are asking and begging for long time).
so who knows, up to dev, but i doubt its priority.