STD`s

hey, were a couple with no experience and were planning on having a man join us for a few nights in a hotel room as a first experience. part of the fantasy is having my partner experiment with being penetrated with an uncut penis, so obviously we'd like to have the experience bareback, any advice on how we can prepare for this as far possibly getting tested in advance before he gets here, possibly using some sort of aftercare (vaginal ovule?)