Yes (Dare)

"ok." All the girls began to laugh hysterically.
"give them back after!" Jane said almost flirtatiously. I wondered if they'd planned for something like this.
"How shall I do this? Wear them over my current ones?"
"No silly! Wear them instead!" Jane said.
"Well I can't take them off in front of all three of you."
"Of course you can! Don't get embarrassed"Sophia teased.
She sighed and finally gave in.
In one swift motion, her black panties were gone. She slipped on the new panties quickly so we would only get a tiny glimpse at her bottom.

It was then I suddenly realised how visible my erection was, as they all stared in my direction.

"Looks like someone's happy" Holly said jokingly.
Jane and Sophia both gasped. "Woah that's big." said Jane.
I smiled. "Glad to impress. Mind if I take my shirt and jeans off Holly? It's really hot in here, and you don't seem bothered with being in your underwear." I said. She agreed, so before long I was sat in just my boxer shorts and socks.
I turn to Sophia.
" truth or dare?" I said. She was still staring at my bulge.
"ummm...."