"Craig I think it time Susan went to bed."
"Why, what happened Sandy?"
"She just poured a drink over her top and can barely stand up."
"Alright let me call a taxi and I'll take her home."
"No need, why don't you stay in our guest room."
"Are you sure, I don't want to put you out."
"It's not a problem, come along I'll help you."
"Thanks Sandy."
Sandy is Susan's younger sister, it's her birthday party we are at, it's not a special birthday it's just Sandy has money now and loves flaunting it.
We go to the kitchen, Sue is sitting at the table alone her head resting on her forearm. I help her to her feet and with Sandy's assistance we take her to the guest room.
Sue sways from side to side as she stands beside the bed, the drink she split on her top has made it see through giving a perfect view of her breasts and nipples as it clings to them.
"I don't want to put her to bed like this Sandy can you help me undress her?"
"Ok."
"Thanks, let get this top off her first."
As I hold her arms up Sandy pulls the top up over her head.
Taking the top from Sandy I sniff the wet patch, "What was she drinking?"
"Some sort of vodka cruiser I think."
"It does have a sweet smell, I wonder what it tastes like."
"Most have a fruity flavour," Sandy says.
"Let's find out," I say as I lean forward running my tongue over one of Sue's nipples, "Hmm not sure, it's fruity but I just can't quite place it, why don't you have a taste."
"What, no I can't."
"Don't be shy Sandy she's your sister after all.
"Yes, but..."
Reaching down I take hold of Sandy's hand lifting it up, holding her finger I press it against one of Sue's nipples, rubbing it against it. Leaning forward I put Sandy's finger into my mouth making it wet, I then rub it against Sue's nipple again before lifting it to Sandy's mouth.
Sandy is just standing staring at me while as I lift her hand up placing the finger in her mouth.
"What flavour do you think it is?"
"Umm mango maybe."
"Oh of course thought I recognised it, does Rob like licking alcohol of your body? I love pouring it over Sue's tits and pussy licking it off."
"What no, we don't."
'Don't you think she has lovely breasts and look how hard her nipple is from me licking it."
"They're alright I guess," Sandy says as she subconsciously pushes her chest forward.
"Isn't it lovely the way Sue's nipples get hard at the slightest touch, do yours?"
"Hmm, not very big are they."
"Are you saying your breasts are better than Sue's, you know what let's compare them."
"Wait, no... no I can't."
"Don't you want to see if your breasts are better than Sue's, you know if you're not sure, well you know that's fine, I'm sure your breasts are nice also," I say cupping Sue's breasts as I lean forward kissing each of her nipples in turn.
As I said Sue and Sandy are sisters, Sue is about 18 months older than Sandy. Looking at them they are nearly identical, both have long blonde hair with crystal blue eyes. small button noses and full lips. At about 6 foot tall, they have long slender legs with narrow waists, firm flat asses and full round breasts.
The thing is Sandy has always been extremely jealous of Sue, being older Sue was always allowed to do things Sandy couldn't do and she didn't like it. As they grew older this jealously also grew with Sandy becoming extremely competitive always trying to out do Sue. It got to the stage Sandy would do anything to be better than Sue, literally anything no matter how nasty, even to the extent of sleeping with her boyfriends to break them up so she could brag boys like her more. Things went to another level when Sandy married Rob, she was his secretary and as Sue's describes it she fucked her way into money.
Rob is 30 years older than Sandy and extremely wealthy, now at every opportunity Sandy flashes this wealth in Sue's face, buying the latest clothes, most expensive shoes, fashion accessories and gawdy jewelry.
Tonight I'm looking to take this competitiveness to a new level and have some fun in the process.
Sandy still stands in front of me looking at Sue's tits, "Here let's unbutton your top and see how they compare to Sue's," with that I move my fingers to her blouse slowly unbuttoning it.
Sandy half-heartedly tries to brush my hand aside but her resistance is only token, she's starting to see this as another opportunity to beat her sister.
Sandy is braless, her breasts round and firm, with two strawberry coloured rosebud nipples standing erect.
In all honesty her breasts may be slightly better than Sue's.
"See I told you they were nicer than Sue's and Rob is paying to make them even better," she says with a big smile.
"Oh they're beautiful Sandy," I say running my fingers over each of her breasts before leaning forward kissing each nipple. "They are perfect and look your nipples go rock hard like Sue's."
"Ah... Craig, oh... umm... you should umm... stop, oh... ah... what about Sue?"
From her moans I'm guessing Sandy's nipples are very sensitive and even so she said we should stop she is making no effort to stop me playing with them.
"Yes Sue I nearly forgot, too busy enjoying your nipples," I say with a laugh, I can see that she enjoys getting praise.
"Please help me remove the rest of her clothes and we'll lie her on the bed to sleep."
Sue has been quietly swaying from side to side giving no indication of knowing what is going on around her.
Sandy begins to reach for her blouse, I grab her hand moving her closer to Sue, "Help me sit her down and I'll remove her slacks if you can take off her shoes."
As Sue sits on the side of the bed I unbutton her slacks, Sandy squats on the floor removing her shoes. Lying her back I lift her ass up pulling the slacks down, at the same time I grab her panties pulling them down also.
"Craig you've taken Sue's panties off."
"Yes, we like to sleep naked, to have access to each other's body when we desire. I imagine you and Rob are the same, waking up during the night, touching each other, fucking each other."
"Hmm," is all Sandy mumbles.
"And look at this glorious pussy," I say spreading Sue's legs, "Isn't it lovely with her trimmed patch of hair on her mound and these beautiful full pussy lips," I say running my finger over them causing another soft moan from Sue.
Sandy tries not to look but as quickly as she looks away she looks back again, Sue's soft moans drawing her back as I run my finger up and down her lips.