"What-N-no of-of course not." Morty mumbled.
"N-no way. That's we're siblings." Summer said.
"Siblings fall in love all the time. True, it's not as common as other forms of love, but it is no less potent and no less real. "Yew said. It was so matter of fact. It made the two of them fell stupid for ever thinking it wasn't merely a matter of course.
"Y-Yew...I..." Summer said, stroking her arm. She felt uncomfortable. She no longer felt like a warrior, beneath his gaze. She felt like a scared little girl.
"And you are both lying to me, when I've asked you to be honest. Did you think I would ask if it wasn't necessary for me to know?" Yew said.
"I-I'm sorry." Summer said. She couldn't deny it. Neither of them could. How stupid was she to think that she could?
"Your love is fine. It isn't a problem. Or at least it wouldn't be under normal circumstances. However...there are certain dangers unique to your situation as Rick's grandchildren. And specifically as the grandchildren of this particular Rick Sanchez." Yew said.
"Unique..." Summer started.
"Dangers...?" Morty finished.
"Yes. There are concerns about that concerning your particular grandfather's psychology as well as the...plans he may be concocting." Yew said.
"Plans?" Summer asked.
"Yes. I have harbored suspicions for a while now. That he may be losing himself. Constructing a dangerous device that could have a dangerous impact on your world." Yew said.
"That describes like half of his inventions." Summer said.
"More than that." Morty muttered.
"More so than usual. This device very well could cause a breakdown in how reality works on your Earth." Yew said.
"Damn." Summer said.
"Damn indeed." Yew said.
"But what does this have to do with...me and Morty?" Summer asked.
"...Nothing. At least not directly. Not that I can deduce anyways. But it's a factor that could cause complications. Rick has a lot of reasons to not want the two of you together. I'd avoid letting it slip that the two of you are together. And if anything happens, contact me. You know how to do it." Yew said.
"...Where the fuck were you two?" Rick said, when Summer and Morty had finally came back to the dining area.
"Just uh...taking in the sights." Morty said.
"Yep. Lots of uh...beautiful sights around here." Summer said, momentarily being distracted by an attractive Unity that had chosen to go braless. Or however, that worked in a hive mind. Morty sighed in exasperation, but it was mostly affectionate.
"Uh huh. Whatever. Let's go back home, I've got lots of garage drinking to catch up on." Rick said as he fiddled with the portal gun.
The city went eerily quiet after the trio left. Yew walked up beside the lead avatar of Unity.
"Rick, he's going to be a problem, isn't he?" Yew said.
"I suspect so." Unity said, sadly.
"It's a shame. He's a real prick, but somehow I don't want to be his enemy." Yew said.
"He has that effect on some people." Unity said.