Only Heather, Chris and Fiona are just under the influence of Pheromones.

All three in the house get close to their precipice, Chris pushes deeper into Fiona as he feels her start to go over, in the moment nothing matters as they both moan loudly going over the edge, Chris pulls out of Fiona after her legs loosen off, both of them moving from the wall to laying on the bed panting. They both hear Heather's stifled moan as she goes over the edge, her cock erupting for the first time as the final changes of her body takes place.

Her face becoming subtly more beautiful than it was, her shoulders and arms gaining muscle mass going from her usual skinny, to more toned, and built as her midsection tones into a six pack, the fat seemingly removed from her midsection, moving to her hips. Her hips widening while her legs lengthen and tone, her ass hardening, her breasts enlarging to 40DD as her new rod reached its full length of 9 inches. As she comes down from her orgasm her mind is changed by the virus a new need constantly thrumming in her mind, Infect and turn others, make them like her.

Chris and Fiona lay there recovering from their fun, when Chris gets up to head to the bathroom to clean off. as he enters the bathroom and closes and locks the door he goes for a shower taking around fifteen minutes to twenty minutes making sure to clean himself off as he tries to decompress the long, and stressful day he had been through. Trying to figure out why when they got home the first thing he and Fiona wanted to do was each other, as he begins to be hit by a wave of the Pheromones now exuding from their guests transformed form, his dick hardening to full length again as he steps out of the shower drying off his whole body before stepping into a pair of jogging bottoms and a loose fit t-shirt. Chris hears moans from his room as he begins to unlock the door.