Peculiar architectures for the WASP-53 and WASP-81 planet-hosting systems$^★$

A.~H.~M.~J. Triaud, M. Neveu-VanMalle, M. Lendl, D.~R. Anderson, A. Collier Cameron, L. Delrez, A. Doyle, Michael Gillon, C. Hellier, E. Jehin, P.~F.~L. Maxted, D. Ségransan, B. Smalley, Didier Queloz, D. Pollacco, J. Southworth, J. Tregloan-Reed, S. Udry, R. West