Yes, it's probably prudent.

You ask Simon if he has a condom even as he's poised above you on the patio sectional, his very long cock inches away from parting your moist lips. He pulls back and grapples in his pants that are lying on the ground, looking for his wallet, but can't find a condom in there. You're about to tell him to forget it and just put it in you when you see something flash through the air, coming from the row of bushes next to the patio and landing under the table. It's a condom in it's foil packet, the same brand your husband normally uses. You point it out to Simon and say, 'there it is, you must have dropped it.' He picks it up and looks at it, a little bemused, perhaps it's not the brand he uses, but then he shrugs and tears it open. While he's putting it on you glance over to the bushes with a half-smile on your face. Apparently your husband wasn't watching from inside the house. You wonder if he'll be stroking himself over behind those bushes as you have a nice time with Simon. It puts you a little more at ease though, knowing you have his support and approval.

Your mind is brought back to the task at hand as you feel Simon gently, but firmly, press into you. Simon removed his shirt and you can now see he actually has a pretty nice body. Not overly muscular, but nicely toned. You can see he has a couple more tattoos now; one of a globe on his chest and another of a sinuous tiger on his side that reaches to his lower abdomen. Overall he's quite sexy as he slowly works his long rod inside of you until he bottoms out. You let out a long moan as he does. He's just as patient now as before, stroking in slowly and deeply each time, then flexing once he's fully inside you. You can't remember ever feeling a cock touch you where his does, and it's really feeling good. When he flexes it's magical, and it convinces you this man can probably lift kettle-bells with his dick.

Your moans and gasps are building toward a crescendo when you swear you hear a sound in the bushes, somewhat like a muffled grunt. You smile, thinking of your husband enjoying the show you're putting on. Simon leans down to kiss you, your lips touching and tongues playing across one another. He then grabs both of you ass cheeks as he slides in, pulling you tight to his body. You wrap you legs around him and start thrusting back against him, getting his cock to stimulate your G spot perfectly. It doesn't take long before you moan out your first orgasm to the night.

You slow down to catch your breath, but Simon never stops moving. His incessant, long deep strokes are maddening as you're still coming back down from your first orgasm, but strangely you feel yourself being buoyed back up, and in a minute you have a second orgasm. 'Oh GOD!' you cry out, this one better than before. You gasp as Simon continues on implacably, 'I've never cum so fast before!'. This time you push him away and make him stop so you can catch your breath. You were worried for a second about passing out. He sits on the couch and after a sip of wine you throw your leg astride him and lower yourself down. This time you're determined to make him cum. Pulling your dress off over your head you ride him gently, pushing your breasts forward in their lacy black bra as you cling to his shoulders. You lean down and kiss him deeply while grinding and flexing and squeezing his shaft inside you. Slowly you increase the pace, but keep up the intensity of the grinding. It feels great, but you're focused on Simon and making him cum. His breathing is getting faster and his face is a little flushed as you work your body on top of him. As you accelerate he grabs your hips and starts pulling you down as he thrusts. This pushes you into another orgasm, and as you writhe and squirm in his lap he starts grunting in time with his thrusts. You can feel him pulsing inside you and a warm sensation flooding you. Wait, you think, that shouldn't be happening. When he finally stops his small thrusts into you and you climb off his long shaft, you see it's followed by a trail of cum. The end of the condom still clinging to his cock is in tatters. 'Oh shit, I'm sorry.' he says. 'Don't worry,' you tell him, it was a safe day anyway. It's not your fault.'

The two of you kiss and giggle and get back into your clothes. He asks when he'll get to see you again and you tell him with a wink, 'I've got your number,' remembering the card he gave you earlier. You send him off with one last kiss, and then sit down on the sectional, smiling in the direction of the bushes. It only takes a second before you husband steps out into the light wearing a dark t-shirt and some gym shorts. He walks right up to you and pulls you upright, wraps his arms around you, and kisses you deeply.

You say to him, 'I'm sorry about the condom babe, I don't know what happened.'

'It must have been old. Don't worry. You said today was safe, right?'

You nod and he kisses you, clearly not too bothered that another man just came inside his wife.

You're pretty tired out and well satisfied, and you wonder what your husband is feeling up for.