Oh you will offend someone, but go ahead and enjoy your bikini body. There will be many (mail and female) in suits that they ought not be wearing. Just cover up in the buffet area and you can't wear a swim suit in the main dining room.
All I ask is a tall ship and a star to steer her by; John Masefield
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012, Dream 2013
Celebrity: Summit 2011
Princess: Ruby 2010, 2014, Caribbean 2013, Coral 2014, Regal 2014, 2016
Sail Windjammer: Mandalay 2017
Star Clippers: Royal Clipper 2015