Nope, Elros is not planning on getting enspelled and wind up sleeping with his non-existent sister, thankyouverymuch!

Also this is hilarious, how sensitive this dragon appears to be about his size, so Elros is going to keep on keeping on.

"I am no liar, O Lesser Beast, for was I not there when my father threw him from the sky? There are others of my kin who can vouch for the size of him as he broke the mountain peaks in his death throes!" He shrugs. "As small as I am to you, you are really not that intimidating, comparatively."