Adam sent the Bikini Babes home because he didn't want to appear shallow. I think if they were serious about having the Bikini Babes as competition, why didn't they bring them in through the side door and parade them in front of the original girls like they did on the other shows. They did it on the sly, so Adam could look like a fabulous sweet guy sending them away. The Bikini Babes didn't appear surprised they were going home, which does make it appear to have been scripted. They didn't seem to be really interested in Adam either. I do believe in "real" life Adam would have been more than happy to play footsie with those gals in the hot tub!! If they had planned on keeping the additional girls that would have been way too many for Adam to narrow down to one in 4 episodes. As it is now how well does he know most of these women from the quick talks for 15 minutes? This must be an experiment in speed dating.