Two years after my mother died, my father fell in love with a glamorous blond Ukrainian divorcee. He was eighty-four and she was thirty-six. She exploded into our lives like a fluffy pink grenade, churning up the murky water, bringing to the surface a sludge of sloughed-off memories.
妈妈死后两年，爸爸就爱上了一个迷人的乌克兰金发离异美女。他84了，她才36.她象颗糖衣炮弹炸进我们的生活，搅浑了一潭死水，把淤积池底已然褪却的记忆全卷了上来。

（翻译成“甜蜜的糖衣炮弹”合适吗？谢谢）

Two years after my mother died, my father fell in love with a glamorous blond Ukrainian divorcee. He was eighty-four and she was thirty-six. She exploded into our lives like a fluffy pink grenade, churning up the murky water, bringing to the surface a sludge of sloughed-off memories.

母亲去世后2年，父亲爱上了一头金发，美艳迷人的乌克兰离异女子。当时他84岁，而她36岁。她的到来完全搅乱了我们的生活，更勾起那些不愿记起的陈年往事。

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我采取意译了,直译也可以，不过“糖衣炮弹”不好，最多换成“桃色炸弹”