Continuing from part three...
It's just after 3am as we leave Thomas and Helen.
We make our way back to our room without speaking but holding each other as we walked.
I lie naked on the bed staring at the ceiling as Wendy showers.
I keep replaying what has just happened over and over in my head.
Even in my physically and mentally exhausted state, my cock grows strong and hard, as hard as I have ever been it seems.
I stroke myself to orgasm, spilling my seed over my stomach as the shower turns off.
Wendy walks in with just a towel wrapped around her luscious body.
"Did you really just cum again?"
"Yes, I can't stop getting hard."
"I know what you mean, do you think there was something in that drink Helen made?"
"I'm not sure but if there was, it is really good stuff."
"I know, even though I'm exhausted I feel like I could fuck forever."
"We need to get some sleep and I need a shower."
I head into the bathroom and turn on the shower and step under the cold water.
The cold shower is working as I get clean and remain flaccid.
I walk out of the bathroom drying myself with a towel and I see Wendy has fallen asleep on the bed with her legs slightly parted.
As gorgeous as she looks I resist the urge to bury my tongue between her legs and I gently cover her with the duvet and climb into bed and sleep myself.
In the morning we sit at the little table on the balcony having breakfast when I look up and see Thomas watching us from his balcony.
He raises his right hand to his right ear and the phone in our room rings.
Wendy gets up and answers the phone.
"Hello?"
I can only hear her side of the conversation.
"Thank you, yes we both had fun."
"Yes, I enjoyed it very much."
"I'm not sure, nothing much I suppose."
"Yes, ok, that would be lovely, thank you."
"I will yes, see you later, bye!"
She hangs up the phone and sits back down to finish her coffee.
"That was Thomas, he has invited us to use his private spa today."
"You mean just us? Or with them?"
"Just us, he said he'd like to invite us for dinner in their suite later on."
"Do you want to go? He'll probably expect to fuck you again."
"I think I want to go, he said he wanted to take more photographs."
She says this with the sexiest smile imaginable.
As we get ready there is a knock at the door.
I open the door to see Helen standing there with an envelope in her hand.
"I won't come in, I just brought you the key to the spa...enjoy!"
She leaves without saying anything else, as if last night didn't happen.
The spa turns out to be just opposite our room underneath Thomas' place.
We walk over and unlock the door and enter a large open area with a well-equipped gym off to one side and a sauna and a steam room to the side of a well-stocked bar/reception area.
There are a multitude of scented candles scattered about and relaxing ambient music playing in the background.
On the bar is an ice bucket with a couple of screw top jars filled with a clear liquid and a pair of tall glass tumblers chilling in the ice.
There is a note from Helen, which reads... "Please enjoy these cocktails, they are my special recipe just for you."
I turn to look at Wendy as she is unscrewing the lid of one of the jars.