Mariana tried to look like she wasn't watching, leaning back with her head facing upwards, but her green eyes gazed over to the side, Josephs hands all over her skin, slowly massaging the oil into her body, Holly's breast so teasingly visible.  Mariana looked away, finding her cheeks growing a little red as she felt herself growing aroused, she had to admit a year ago the idea of her kids having sex scared her, but before she got angry at them and did something she regretted she had thought alot about it, they'd be closer then ever, it would keep there urges down, she'd always know where they were and who they were with the sheer amount of benefits had surprised her greatly and it didn't take her long to begin to enjoy thinking about them together, the were such a cute little couple, so she decided to give them some tips here and there, slowly it grew into something more, some perverted little fantasy of hers, that her whole family would just live together, have sex together, everything.