More secrets revealed

So it's Morning and Kirsty knocks on Emma's door. Emma opens up let's Kirsty in as Emma closes the Door her and Kirsty lock lips with a passionate kiss. "Kirsty what's wrong babe?" Emma asks. Emma is same age as Kirsty she is slimmer has brown hair and little shorter that Kirsty and has always been bisexual and has had the odd fling with kirsty years before she fostered. "well last night I caught my foster son wanking cummed then moaned my name...what do I do?". Emma replies with a straight "Well fuck him..give him what he wants". Kirsty horrified "I can't he my son" Emma interupts "Foster son so it's not illegal". Kirsty frozen "but it feels wrong". Emma replies "he a full grown adult babe you done your foster duty...now you can show him a good time. Tonight set the mood get a nice dress or something and show him a good time...that's if he wants it". Kirsty thinks "maybe".Emma get up and drops her robe showing her small silky top and shorts. She sits on Kirsty lap. "Let Me show you a good time". Emma removes her top exposing her nice C cup breasts and pulls Kirsty head towards her chest. Kirsty takes Emma nipple in her mouth and starts to suck, lick on Emma nipple. Emma moans "hhhh yes Kirsty it's been 20 long years" Emma gets up and pulls Kirstys jeans down followed by her knickers. Emma takes the view as she opens Kirstys legs and goes straight to Kirstys clit give its a few licks followed by some wet sucking noise. "ohhh Emma you gotten better" Kirsty says. Emma doesn't reply as she starts to lick deep in Kirsty with Emma tounge Exploring Kirsty then all of a sudden Kirstys phone starts to ring its you wondering where she is. "Heyyyyyy sweeeetie ohhhhh I'm just at Emma's ill be Home soooon Bye sweetie". Kirsty grabs Emma's head and pulls in deeper a few more licks send Kirsty Over the edge "ohhhhh god" after a minuet Kirsty pulls her pants and jeans up and gives Emma a long kiss and says "thanks babe I owe you one" as she leaves to see you